Wearing more pieces of this set will convey bonuses to your character.

3 pieces: Increases the chance to apply poisons to your target by 5%.

5 pieces: Improves the damage reduction of Feint by 5%.

8 pieces: Gives the Rogue a chance to inflict 283 to 317 (+ 100% of Spell power) damage on the target and heal the Rogue for 50 (+ 100% of Spell power) health every 1 sec. for 6 sec. on a melee hit.

Comment by RevengencerAlf

Has anyone seen this drop since WoD came out? I've run it quite literally every week since release, however many that is not exactly I don't remember, and I haven't seen it drop off of Nefarian once. It's definitely still within the realm of RNG possibility, but I'm starting to get suspicious that it just might be a little more than my bad luck for a 22% drop (essentially 1/5) to have not dropped after at least 12 weeks.